Operation Operating in “Bow-up” Position The “bow-up” A position is normally used for cruising, running with a choppy wave condition, or running at full speed. In a full “bow-up” position the boat may tend to self-steer. You may have to compensate with the steering wheel to keep the boat in a straight-ahead path. In this position the boat’s bow will tend to raise clear of the water. Excessive “bow-up” trim will cause propeller ventilation resulting in propeller slippage. Engine RPM will also increase, but boat speed will not increase and may even drop. 22796 CAUTION! Use caution when operating in rough water or crossing another boat’s wake.
Exces- sive “bow-up” trim may result in the boat’s bow rising rapidly and possibly throwing the boat’s oc- cupants into the water. Operating in “Bow-down” Position The “bow-down” B position is normally used for accel- eration onto plane, operating at slow planing speeds, and running against a choppy wave condition. In the fully “bow-down” position the boat may tend to self- steer. You may have to compensate with the steering wheel to keep the boat in a straight-ahead path. In this position the boat’s bow will tend to go deeper into the water. If the boat is operated at high speed and/or against high waves, the bow of the boat will plow into the water.
The boat may tend to bow steer or spin about rapidly and possibly eject occupants. 7743722 - Downloaded from www.volvopenta.com 13/05/2008 20:17:06 22797 CAUTION! The boat trim should be adjusted to provide balanced steering as soon as possible each time you get underway. Some boat, engine, and propeller combinations may encounter boat instability and/or high steering torque when oper- ated at or near the limits of the “bow-up” or “bow- down” positions. Boat stability and steering torque can also vary due to changing water con- ditions. If you experience boat instability and/or high steering torque, see your Volvo Penta deal- er to correct these conditions. VPA 7743722 English 10-2004 41